WO2003092776A3 - Medical gas recirculation system - Google Patents

Medical gas recirculation system Download PDF

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Publication number
WO2003092776A3
WO2003092776A3 PCT/GB2003/001875 GB0301875W WO03092776A3 WO 2003092776 A3 WO2003092776 A3 WO 2003092776A3 GB 0301875 W GB0301875 W GB 0301875W WO 03092776 A3 WO03092776 A3 WO 03092776A3
Authority
WO
WIPO (PCT)
Prior art keywords
pressure section
maintained
gas
main circuit
lower pressure
Prior art date
Application number
PCT/GB2003/001875
Other languages
French (fr)
Other versions
WO2003092776A2 (en
Inventor
Neil Alexander Downie
Stuart Alexander Kerr
Original Assignee
Air Prod & Chem
Neil Alexander Downie
Stuart Alexander Kerr
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Air Prod & Chem, Neil Alexander Downie, Stuart Alexander Kerr filed Critical Air Prod & Chem
Priority to BR0309672-6A priority Critical patent/BR0309672A/en
Priority to CA2484066A priority patent/CA2484066C/en
Priority to MXPA04010709A priority patent/MXPA04010709A/en
Priority to AU2003240993A priority patent/AU2003240993B2/en
Priority to JP2004500957A priority patent/JP4563795B2/en
Priority to DE60322372T priority patent/DE60322372D1/en
Priority to EP03730311A priority patent/EP1499377B1/en
Priority to US10/512,740 priority patent/US20060231098A1/en
Publication of WO2003092776A2 publication Critical patent/WO2003092776A2/en
Publication of WO2003092776A3 publication Critical patent/WO2003092776A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0045—Means for re-breathing exhaled gases, e.g. for hyperventilation treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • A61M1/1698—Blood oxygenators with or without heat-exchangers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3666—Cardiac or cardiopulmonary bypass, e.g. heart-lung machines
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/1055—Filters bacterial
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • A61M16/1065—Filters in a path in the expiratory path
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/105—Filters
    • A61M16/106—Filters in a path
    • A61M16/107—Filters in a path in the inspiratory path
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/22—Carbon dioxide-absorbing devices ; Other means for removing carbon dioxide
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M2016/102—Measuring a parameter of the content of the delivered gas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M2016/102—Measuring a parameter of the content of the delivered gas
    • A61M2016/1025—Measuring a parameter of the content of the delivered gas the O2 concentration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0291—Xenon

Abstract

A medical device (103) is supplied (105) with a gas mixture from a higher pressure section of a main circuit (102) in which medical gas recirculates through the higher pressure section and a lower pressure section. Decontaminated spent gas is returned to the lower pressure section of the main circuit. Pressure in the higher pressure section is maintained by a pressure maintaining valve (141) and gas flow in the main circuit is maintained by a volume regulator (145) in the lower pressure section. The composition of the recirculating gas mixture is maintained by addition of respective feed gases in response to concentration and/or volume variation measurement. The method has particular application to the feed of a binary oxygen/xenon mixture to a cardiopulmonary bypass oxygenator or an artificial ventilator.
PCT/GB2003/001875 2002-05-01 2003-05-01 Medical gas recirculation system WO2003092776A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BR0309672-6A BR0309672A (en) 2002-05-01 2003-05-01 Apparatus for providing and circulating for a medical gas mixture clinical device comprising at least two components, clinical device system, method of providing a medical gas mixture clinical device comprising at least two components, and method for extracorporeal treatment of blood
CA2484066A CA2484066C (en) 2002-05-01 2003-05-01 Medical gas recirculation system
MXPA04010709A MXPA04010709A (en) 2002-05-01 2003-05-01 Medical gas recirculation system.
AU2003240993A AU2003240993B2 (en) 2002-05-01 2003-05-01 Medical gas recirculation system
JP2004500957A JP4563795B2 (en) 2002-05-01 2003-05-01 Medical gas recirculation system
DE60322372T DE60322372D1 (en) 2002-05-01 2003-05-01 REVERSE SYSTEM FOR MEDICAL GAS
EP03730311A EP1499377B1 (en) 2002-05-01 2003-05-01 Medical gas recirculation system
US10/512,740 US20060231098A1 (en) 2002-05-01 2003-05-01 Medical gas recirculation system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0210023.8 2002-05-01
GBGB0210023.8A GB0210023D0 (en) 2002-05-01 2002-05-01 Medical gas recirculation system

Publications (2)

Publication Number Publication Date
WO2003092776A2 WO2003092776A2 (en) 2003-11-13
WO2003092776A3 true WO2003092776A3 (en) 2004-03-18

Family

ID=9935914

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/001875 WO2003092776A2 (en) 2002-05-01 2003-05-01 Medical gas recirculation system

Country Status (12)

Country Link
US (1) US20060231098A1 (en)
EP (1) EP1499377B1 (en)
JP (1) JP4563795B2 (en)
AT (1) ATE401923T1 (en)
AU (1) AU2003240993B2 (en)
BR (1) BR0309672A (en)
CA (1) CA2484066C (en)
DE (1) DE60322372D1 (en)
ES (1) ES2307940T3 (en)
GB (1) GB0210023D0 (en)
MX (1) MXPA04010709A (en)
WO (1) WO2003092776A2 (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004015406A1 (en) * 2004-03-26 2005-10-13 Ino Therapeutics Gmbh Method and device for administration of xenon to patients
EP1912694A4 (en) 2005-07-28 2011-11-09 Marat Slessarev A method and apparatus to attain and maintain target end tidal gas concentrations
WO2007012170A1 (en) * 2005-07-28 2007-02-01 Marat Slessarev A new method and apparatus to attain and maintain target end tidal gas concentrations
FR2894486B1 (en) 2005-12-14 2008-11-21 Air Liquide XENON CONCENTRATION MEASUREMENT DEVICE AND XENON VENTILATORY ANESTHESIA APPARATUS
NZ552009A (en) * 2006-01-24 2007-10-26 Devx Tech Ip Ltd Hypoxic training apparatus with gas supply from primary, secondary and tertiary sources
US7819834B2 (en) * 2006-01-24 2010-10-26 Terumo Cardiovascular Systems Corp. System and method of air embolism detection and diversion
US8585968B2 (en) * 2006-04-21 2013-11-19 Scott W. Morley Method and system for purging moisture from an oxygenator
DE102006034601B3 (en) * 2006-07-26 2008-02-07 Schmidt, Klaus, Prof. Dr. Retention of noble gases in the respiratory gas in ventilated patients by means of membrane separation
FR2917626A1 (en) * 2007-06-19 2008-12-26 Air Liquide Medical ventilator i.e. anesthesia ventilator, for e.g. lung of patient, has bypass cardiopulmonary circuit comprising supply branch for supplying gas to bypass cardiopulmonary membrane system, and gas source delivering gas into branch
US8425428B2 (en) 2008-03-31 2013-04-23 Covidien Lp Nitric oxide measurements in patients using flowfeedback
FR2931682B1 (en) 2008-05-27 2010-07-30 Air Liquide IMPROVING THE PRECISION FOR MEASURING XENON CONTENT IN A VENTILATORY ANESTHESIA APPARATUS.
US8652064B2 (en) 2008-09-30 2014-02-18 Covidien Lp Sampling circuit for measuring analytes
US8393323B2 (en) 2008-09-30 2013-03-12 Covidien Lp Supplemental gas safety system for a breathing assistance system
WO2011021978A1 (en) * 2009-08-21 2011-02-24 Maquet Critical Care Ab Coordinated control of ventilator and lung assist device
US8434484B2 (en) 2009-12-03 2013-05-07 Covidien Lp Ventilator Respiratory Variable-Sized Gas Accumulator
US20110209707A1 (en) * 2010-02-26 2011-09-01 Nellcor Puritan Bennett Llc Method And Apparatus For Oxygen Reprocessing Of Expiratory Gases In Mechanical Ventilation
ES2363550B2 (en) * 2011-03-31 2012-02-24 Nicolas Anthony Costovici SYSTEM FOR INSUFLATION OF HEATED GAS IN PATIENTS
DE102011052189A1 (en) * 2011-07-27 2013-01-31 Maquet Vertrieb Und Service Deutschland Gmbh Electronically controlled gas mixing unit for supplying a purge gas to an oxygenator
DE102011052187A1 (en) * 2011-07-27 2013-01-31 Maquet Vertrieb Und Service Deutschland Gmbh Arrangement for removing carbon dioxide from an extracorporeal blood stream by means of inert gases
DE102012110067A1 (en) * 2012-07-20 2014-05-15 Hypower Gmbh Method and apparatus for adjusting the amount or partial pressures of two gases in a fluid
EP2965770A1 (en) * 2014-07-09 2016-01-13 Universitätsklinikum Regensburg Blood oxygenator device
US20160114116A1 (en) * 2014-10-27 2016-04-28 Wake Forest University Health Sciences Low-Profile Bifurcated Bilateral Endotracheal-Endobronchial Tube and Methods of Using
GB2557863B (en) 2014-12-03 2020-09-16 Spectrum Medical Ltd Ventilation System
GB2561221A (en) * 2017-04-06 2018-10-10 Spectrum Medical Ltd Oxygenation system
EP3427772B1 (en) * 2017-07-10 2023-05-03 B. Braun Avitum AG Oxygenator unit with a pressure relief valve
MX2021011523A (en) * 2019-03-25 2021-12-15 Mallinckrodt Pharmaceuticals Ireland Ltd Gas delivery system.
WO2021207600A1 (en) 2020-04-10 2021-10-14 Covidien Lp Gas mixing system for medical ventilator
US11872349B2 (en) 2020-04-10 2024-01-16 Covidien Lp Systems and methods for increasing ventilator oxygen concentration
DE102021100090B4 (en) * 2020-05-13 2023-08-10 Drägerwerk AG & Co. KGaA System for providing gases or gas mixtures with the supply of substances

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1188638A1 (en) * 1981-08-26 1985-10-30 Dyachenko Mikhail A Ultrasonic gas analyser
US4903693A (en) * 1987-08-19 1990-02-27 Anzai Sogyo Co., Ltd. Xenon inhalation apparatus
EP0745405A1 (en) * 1995-06-02 1996-12-04 Siemens-Elema AB Anaesthetic system
EP0861672A1 (en) * 1995-09-20 1998-09-02 Panina, Elena Vladimirovna Method of producing a breathing mixture and an apparatus for applying the method
US6131571A (en) * 1997-04-30 2000-10-17 University Of Florida Ventilation apparatus and anesthesia delivery system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1188638A1 (en) * 1981-08-26 1985-10-30 Dyachenko Mikhail A Ultrasonic gas analyser
US4903693A (en) * 1987-08-19 1990-02-27 Anzai Sogyo Co., Ltd. Xenon inhalation apparatus
EP0745405A1 (en) * 1995-06-02 1996-12-04 Siemens-Elema AB Anaesthetic system
EP0861672A1 (en) * 1995-09-20 1998-09-02 Panina, Elena Vladimirovna Method of producing a breathing mixture and an apparatus for applying the method
US6131571A (en) * 1997-04-30 2000-10-17 University Of Florida Ventilation apparatus and anesthesia delivery system

Also Published As

Publication number Publication date
AU2003240993B2 (en) 2008-01-31
EP1499377B1 (en) 2008-07-23
DE60322372D1 (en) 2008-09-04
ATE401923T1 (en) 2008-08-15
WO2003092776A2 (en) 2003-11-13
MXPA04010709A (en) 2005-03-07
BR0309672A (en) 2005-04-05
AU2003240993A1 (en) 2003-11-17
US20060231098A1 (en) 2006-10-19
ES2307940T3 (en) 2008-12-01
CA2484066A1 (en) 2003-11-13
JP4563795B2 (en) 2010-10-13
JP2005523778A (en) 2005-08-11
CA2484066C (en) 2012-03-13
EP1499377A2 (en) 2005-01-26
GB0210023D0 (en) 2002-06-12

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